3 files changed, 52 insertions, 13 deletions
diff --git a/site/public/assets/javascripts/_env.js b/site/public/assets/javascripts/_env.js
index 53a73af..b571af5 100644
--- a/site/public/assets/javascripts/_env.js
+++ b/site/public/assets/javascripts/_env.js
@@ -169,18 +169,6 @@ environment.ready = function(){
   
   setTimeout(function(){ done_loading = true }, 200)
 
-  /*
-   * Proper fullscreen detection using the HTML5
-   * Full Screen API. Not supported on mobile or
-   * IE10 and under
-   */
-  function isFullScreen() {
-    return !!(document.fullscreenElement ||
-        document.webkitFullscreenElement ||
-        document.mozFullScreenElement ||
-        document.msFullscreenElement)
-  }
-
   $(document).on('webkitfullscreenchange mozfullscreenchange fullscreenchange MSFullscreenChange', function(){
     if (isFullScreen()) {
       $("html").addClass("full-screen")
diff --git a/site/public/assets/javascripts/vendor/polyfill.js b/site/public/assets/javascripts/vendor/polyfill.js
index 411d90f..8c26e80 100644
--- a/site/public/assets/javascripts/vendor/polyfill.js
+++ b/site/public/assets/javascripts/vendor/polyfill.js
@@ -97,4 +97,34 @@ function fullscreen (el) {
   } else if (el.webkitRequestFullscreen) {
     el.webkitRequestFullscreen();
   }
-}
-\ No newline at end of file
+}
+
+/*
+ * Proper fullscreen detection using the HTML5
+ * Full Screen API. Not supported on mobile or
+ * IE10 and under
+ * TODO Need to disable fullscreen button on IE10 and lower
+ */
+function isFullScreen() {
+  return !!getFullScreenElement()
+}
+
+function getFullScreenElement() {
+  return document.fullScreenElement ||
+      document.webkitFullscreenElement ||
+      document.mozFullScreenElement ||
+      document.msFullscreenElement
+}
+
+var raf = window.requestAnimationFrame ||
+    window.webkitRequestAnimationFrame ||
+    window.mozRequestAnimationFrame ||
+    window.oRequestAnimationFrame ||
+    window.msRequestAnimationFrame
+
+var caf = window.cancelAnimationFrame ||
+    window.webkitCancelAnimationFrame ||
+    window.mozCancelAnimationFrame ||
+    window.oCancelAnimationFrame ||
+    window.msCancelAnimationFrame
+
diff --git a/site/public/assets/javascripts/vendor/util.js b/site/public/assets/javascripts/vendor/util.js
index 0f5c6ed..487fe56 100644
--- a/site/public/assets/javascripts/vendor/util.js
+++ b/site/public/assets/javascripts/vendor/util.js
@@ -240,6 +240,27 @@ if (!Function.prototype.bind) {
         };
 }());
 
+/*
+ * Throttle a function to be called no more often
+ * than ms milliseconds
+ */
+function throttle(fn, ms) {
+  ms = ms || 100
+  var ready = true
+  var last
+  return function() {
+    var now = Date.now()
+    if (ready) {
+      last = now
+      return fn.apply(this, arguments)
+      ready = false
+    } else {
+      if (now - last > ms) {
+        ready = true
+      }
+    }
+  }
+}
 
 function selectElementContents(el) {
   if (window.getSelection && document.createRange) {